LM5033MM/NOPB Equivalent & Substitute Parts

Part Overview

The LM5033MM/NOPB is a Full-Bridge, Half-Bridge, Push-Pull Regulator controller IC manufactured by Texas Instruments, designed for positive output Step-Up/Step-Down DC-DC conversion applications. This device operates across a wide supply voltage range of 15V to 90V and provides PWM signal output with integrated synchronous rectifier and clock synchronization capabilities. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring this controller topology.

Substiute Parts

LM5033MM/NOPB

Texas InstrumentsIn Stock: 2308LM5033MM/NOPB Datasheet

Current PartRFQ

LM5033MMX/NOPB

Texas InstrumentsIn Stock: 4225LM5033MMX/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM5033MM/NOPB is determined by strict equivalence across the following critical parameters:

• Package Compatibility: Identical 10-VSSOP supplier device package and 10-TFSOP/10-MSOP physical form factor
• Electrical Specifications: Matching supply voltage range (15V ~ 90V), switching frequency options (200kHz, 600kHz), and PWM output type
• Functional Topology: Identical Full-Bridge, Half-Bridge, Push-Pull regulator architecture with positive output configuration
• Control Features: Presence of Frequency Control and Soft Start functionality
• Synchronous Operation: Integrated synchronous rectifier and clock synchronization capability
• Compliance Standards: ROHS3 compliance, MSL Level 1, and identical REACH/ECCN classifications
• Output Configuration: Two outputs with single phase operation

Only parts meeting all these criteria are classified as parametric equivalents.

Parameter Comparison

Engineering Selection Recommendations

The LM5033MMX/NOPB is a direct parametric equivalent to the LM5033MM/NOPB. Both parts share identical electrical specifications, package configurations, and functional capabilities across all critical parameters. The primary distinction is product lifecycle status: the LM5033MM/NOPB is in Last Time Buy phase, while the LM5033MMX/NOPB maintains Active status with higher inventory availability (4200 units versus 2290 units).

For new designs or applications requiring long-term supply assurance, the LM5033MMX/NOPB is the preferred selection due to its active production status. Both parts satisfy ROHS3 compliance and REACH requirements, ensuring regulatory compatibility across equivalent applications.

Frequently Asked Questions (FAQ)

Q: Can the LM5033MMX/NOPB directly replace the LM5033MM/NOPB in existing designs?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, package dimensions, pin configurations, and functional characteristics. No circuit modifications are required for substitution.

Q: What is the significance of the product status difference between these parts?

A: The LM5033MM/NOPB is in Last Time Buy status, indicating Texas Instruments has ceased new production orders. The LM5033MMX/NOPB maintains Active status with ongoing production. For applications requiring extended component availability, the active part is recommended.

Q: Are the package specifications identical between these two parts?

A: Yes. Both parts use the 10-VSSOP supplier device package with 10-TFSOP and 10-MSOP physical form factors measuring 0.118" × 3.00mm width. PCB layouts and thermal management designs are directly compatible.

Q: Do both parts support the same switching frequency options?

A: Yes. Both the LM5033MM/NOPB and LM5033MMX/NOPB support 200kHz and 600kHz switching frequency operation with identical frequency control and soft start features.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, carry MSL Level 1 (Unlimited), and share identical REACH and ECCN classifications (EAR99).